1. Do Now 3/10/10 Take out HW from Friday & last night. Take out HW from Friday & last night.  Text p. 309, #7-11 all, 17 & 18  Practice worksheets 6.6 & 6.7 Copy HW in your planner. Copy HW in your planner.  Text p. 315 #7-16 all  Quiz sections 6.6-6.8 Friday In your journal, answer the following question. Suppose you are rolling two 6-sided number cubes and finding the sum of the rolls. What is the probability of you rolling 6, 7, or 8? In your journal, answer the following question. Suppose you are rolling two 6-sided number cubes and finding the sum of the rolls. What is the probability of you rolling 6, 7, or 8?

2. Roll the dice... Suppose you are rolling a two 6-sided number cubes and finding the sum of the rolls. Suppose you are rolling a two 6-sided number cubes and finding the sum of the rolls. How many ways can you can get a 6, 7, or 8? 1234561234567 2345678 3456789 45678910 567891011 6789101112 You can get a 6, 7, or 8, 16 different ways.

3. Homework Textbook p. 309, #7-11 all, 17 & 18 7) 1/4 8) 1 to 3 9) 3 to 1 10) about 12 or 13 times 11) a) 2/11 b) 5/11 c) 6 to 5 d) RIVER 17) 18)

4. Homework Practice worksheet 6.6 1) 96 mi. 2) 204 mi. 3) 300 mi. 4) 504 mi. 5) 6 mi. 6) 9 mi. 7) 4.5 mi. 8) 13.5 mi. 9) 30 mi. 10) 4 cm 11) 9 cm 12) 15 cm 13) 5.5 cm 14) 0.3 cm 15) 0.6 cm 16) 1.2 cm 17) 0.25 cm 18) 0.45 cm 19) 1 : 168 20) 1: 1080 21) 1: 300 22) 1 : 6500 23) 1 : 800,000 24) 1 : 320 25) 360 mi. 26) 1 in. : 8ft. 27) 2 m 28) a). 12 in. b). 360

5. Homework Practice worksheet 6.7 1) theoretical 2) experimental 3) 3/10 4) 1/5 5) 4 to 1 6) 2 to 3 7) 5 times 8) 4/9 9) 1/3 10) 1 to 2 11) 3 to 2 12) 2/3 13) 16/45 14) 37 to 53

6. Objective SWBAT use the counting principle to find probabilities

7. Experimental probability- performing an experiment and testing data. Section 6.7 “Probability and Odds” Theoretical probability- Theoretical probability- mathematically tells you how likely it is that an event will happen.

8. Roll the dice... Suppose you are rolling a two 6-sided number cubes and finding the sum of the rolls. Suppose you are rolling a two 6-sided number cubes and finding the sum of the rolls. What is the probability that you will roll a 7? What is the probability that you will roll a prime number? a composite number? 1234561234567 2345678 3456789 45678910 567891011 6789101112

9. You are buying new eyeglasses and must choose the frame material and shape. The frame can be either plastic or metal. The shape can be rectangular, oval, cat’s eye, or round. How many different frames are possible? plastic metal rectangular oval cat’s eye round rectangular oval round One way to count the number of possibilities is to use a TREE DIAGRAM. One way to count the number of possibilities is to use a TREE DIAGRAM. There are 8 different frame types. There are 8 different frame types.

10. What if the frames come in different colors. They can be either black, red, green, or blue. How many different frames are possible now? plastic black rectangular oval cat’s eye round There are 32 different frame types. There are 32 different frame types. metal rectangular oval cat’s eye round plastic red rectangular oval round metal rectangular oval round plastic green rectangular oval round metal rectangular oval round plastic blue rectangular oval round metal rectangular oval round

11. The early bird menu at TGIFriday’s for lunch consists of 3 entrees and 2 desserts. How many different lunch combinations can you get? Make a tree diagram: E1E2E3 D1D2D1D2D1D2 E1D1 E1D2 E2D1 E2D2 E3D1 E3D2 6 lunch combinations Use the Counting Principle: (3 entrees) x (2 desserts) = 6 lunch combination Section 6.8 “The Counting Principle” If one event can occur in m ways and another event can occur in n ways, then the two events can occur in mn ways.

12. Section 6.8 “The Counting Principle” If one event can occur in m ways and another event can occur in n ways, then the two events can occur in mn ways. If one event can occur in m ways and another event can occur in n ways, then the two events can occur in mn ways. The dinner menu at TGIFriday’s consists of 5 appetizers, 14 entrees, and 3 desserts. How many different dinner combinations can you get? Make a tree diagram: Use the Counting Principle: (5 appetizers) x (14 entrees) x (3 desserts) = 210 different dinner combinations

13. You spin each spinner once. Find the probability that all three spinners stop on the number 2? Use the counting principle to find the total number of possible outcomes. Spinner 1 = 8 outcomes Spinner 1 = 8 outcomes Use the Counting Principle with Probabilities Spinner 2 = 5 outcomes Spinner 2 = 5 outcomes Spinner 3 = 4 outcomes Spinner 3 = 4 outcomes The total amount of outcomes is 8 x 5 x 4 = 160. The probability that all three spinners stop on the number 2 is 1/160.

14. You spin each spinner once. Find the probability that all three spinners stop on the same number? Use the counting principle to find the total number of possible outcomes. Spinner 1 = 8 outcomes Spinner 1 = 8 outcomes Use the Counting Principle with Probabilities Spinner 2 = 5 outcomes Spinner 2 = 5 outcomes Spinner 3 = 4 outcomes Spinner 3 = 4 outcomes The total amount of outcomes is 8 x 5 x 4 = 160. The probability that all three spinners stop on the same number is 4 out of 160 which is 1/40. All three spinners share 1, 2, 3, & 4, so there are 4 favorable outcomes.

15. NJASK7 Prep Homework  Textbook page 315, #7-16 all